A picture shows the Olympic Flame after the cauldron in the Olympic Stadium was lit during the opening ceremony of the London 2012 Olympic Games in London on July 27, 2012. AFP PHOTO / CHRISTOPHE SIMON

Fireworks light the sky above the Olympic Stadium during the opening ceremony of the London 2012 Olympic Games in London on July 27, 2012. AFP PHOTO / CHRISTOPHE SIMON

Fireworks illuminate the sky over the stadium during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / BEN STANSALL

Fireworks burst over the Olympic Stadium during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / BEN STANSALL

Fireworks burst over the Olympic Stadium during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / BEN STANSALL

Fireworks burst over the Olympic Stadium during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / BEN STANSALL

Britain's Prime Minister David Cameron (C) talks to his wife Samantha (L) during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO / ODD ANDERSEN

Artists perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO / ADRIAN DENNIS

Fireworks explode over the Olympic Stadium in London at the conclusion of the opening ceremony of the London 2012 Olympic Games on July 27, 2012. AFP PHOTO / CARL DE SOUZA

Senegal's flagbearer Hortance Diedhiou carries her country's flag as she leads her country's delegation during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO / GABRIEL BOUYS

Britain's Prime Minister David Cameron (L) stands next to London's Mayor Boris Johnson (C) and Marina Wheeler (R) during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO / ODD ANDERSEN

A woman poses with a French flag painted on her face at Trafalgar Square in London on July 27, 2012, during the opening ceremony of the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ

A young Polish spectator wears the colours of his country as he poses at Trafalgar Square in London on July 27, 2012, during the opening ceremony of the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ

Malaysian fans pose with Olympic glasses prior to the opening ceremony of the London 2012 Olympic Games in London on July 27, 2012. AFP PHOTO / YURI CORTEZ

A Malaysian fan poses with Olympic glasses at Trafalgar Square prior to the opening ceremony of the London 2012 Olympic Games in London on July 27, 2012. AFP PHOTO / YURI CORTEZ

A performer poses with an Olympic flag at Trafalgar Square during the opening ceremony of the London 2012 Olympic Games in London on July 27, 2012. AFP PHOTO / YURI CORTEZ

Artists perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO/ EMMANUEL DUNAND

Artists perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / GABRIEL BOUYS

Artists perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / GABRIEL BOUYS

Artists perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / OLIVIER MORIN

Artists perform during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO / CHRISTOPHE SIMON

Britain's flagbearer Chris Hoy (R) leads his delegation as they parade during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO / CHRISTOPHE SIMON

The Olympic Flame is lit during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

The Olympic Flame is lit during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

The Olympic Flame is lit during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

The Olympic flame is displayed at the Olympic stadium in London on July 27, 2012 at the end of the opening ceremony of the London 2012 Olympic Games . AFP PHOTO / MARK RALSTON

The Olympic flame is displayed at the Olympic stadium in London on July 27, 2012 at the end of the opening ceremony of the London 2012 Olympic Games . AFP PHOTO / MARK RALSTON

The Olympic flame is displayed at the Olympic stadium in London on July 27, 2012 at the end of the opening ceremony of the London 2012 Olympic Games . AFP PHOTO / EMMANUEL DUNAND

Fireworks explode while the Olympic Cauldron is lit during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium July 27, 2012 in London. AFP PHOTO / EZRA SHAW/POOL

Great Britain's delegation member parade during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

PICTURE TAKEN WITH A ROBOTIC CAMERA Britain's flagbearer Chris Hoy leads his delegation as they parade during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO / ANTONIN THUILLIER

PICTURE TAKEN WITH A ROBOTIC CAMERA Britain's flagbearer Chris Hoy leads his delegation as they parade during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO / ANTONIN THUILLIER

Fireworks explode while the Olympic Cauldron is lit during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium July 27, 2012 in London. AFP PHOTO / EZRA SHAW/POOL

Britain's Queen Elizabeth II (background C) watches as the Olympic flame is displayed at the Olympic stadium in London on July 27, 2012 at the end of the opening ceremony of the London 2012 Olympic Games . AFP PHOTO / MARK RALSTON

Five-time Olympic rowing gold medallist Steve Redgrave of Britain carries the torch during the opening ceremony of the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO/SAEED KHAN

Novak Djokovic of the Serbia Olympic tennis team carries his country's flag during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium July 27, 2012 in London. AFP PHOTO / EZRA SHAW/POOL

A general view shows the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

A general view shows the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

Britain's flagbearer Chris Hoy leads his country's delegation parade during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / POOL / MATT DUNHAM

Britain's flagbearer Chris Hoy leads his country's delegation parade during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / POOL / MATT DUNHAM

Fireworks explode while the Olympic Cauldron is lit during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium July 27, 2012 in London. AFP PHOTO / EZRA SHAW/POOL

Fireworks explode at the Olympic stadium in London on July 27, 2012 at the end of the opening ceremony of the London 2012 Olympic Games . AFP PHOTO / MARK RALSTON

A general view shows the Olympic Flame lit during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

Artists perform during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

Russian athletes enter the Olympic stadium during the opening ceremony of the London 2012 Olympic games on July 27, 2012. AFP PHOTO / SAEED KHAN

Britain's Prince William and his wife Catherine (C-back) stand with Britain's Prime Minister David Cameron and his wife Samantha (front) during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / POOL / MATT DUNHAM

Athletes gather in the Olympic stadium during the opening ceremony of the London 2012 Olympic games on July 27, 2012. AFP PHOTO / SAEED KHAN

Sebastian Coe addresses the audience at The Olympic Stadium in London on July 27, 2012, during the opening ceremony of The 2012 London Olympic Games. AFP PHOTO / SAEED KHAN

Britain's flagbearer Chris Hoy leads his delegation as they parade during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO /POOL/ CAMERON SPENCER

Britain's flagbearer Chris Hoy leads his delegation as they parade during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO /POOL/ CAMERON SPENCER

Britain's flagbearer Chris Hoy leads his delegation as they parade during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO /POOL/ CAMERON SPENCER

Fireworks explode over the Olympic Flame at the Olympic stadium in London on July 27, 2012 at the end of the opening ceremony of the London 2012 Olympic Games . AFP PHOTO / MARK RALSTON

The Olympic flag is carried during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

United Nations Secretary-General Ban Ki-moon (TOP/C) joins others as they parade with The International Olympic Committee (IOC) flag at The Olympic Stadium in London on July 28, 2012, during the opening ceremony of The 2012 London Olympic Games. AFP PHOTO / SAEED KHAN

Members of the Britain's delegation parade during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO /POOL/ CAMERON SPENCER

The Olympic cauldron burns at the Olympic stadium during the opening ceremony of the London 2012 Olympic games on July 27, 2012. AFP PHOTO / LEON NEAL

Fireworks explode over the Olympic Flame at the Olympic stadium in London on July 27, 2012 at the end of the opening ceremony of the London 2012 Olympic Games . AFP PHOTO / MARK RALSTON

Fireworks explode over the Olympic Flame at the Olympic stadium in London on July 27, 2012 at the end of the opening ceremony of the London 2012 Olympic Games . AFP PHOTO / MARK RALSTON

Young athletes carry the Olympic Flame during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO/ EMMANUEL DUNAND

Serbia's flagbearer Novak Djokovic leads his delegation as they parade during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO / SAEED KHAN

US flagbearer Mariel Zagunis (C) parades with compatriots during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO / MARK RALSTON

Former boxing champion Muhammad Ali (L) attends the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO / FABRICE COFFRINI

Former boxing champion Muhammad Ali (2ndL) attends the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO / FABRICE COFFRINI

An artist performs during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / THOMAS COEX

Dancers perform in front of a "setting sun" in a scene dramatising the struggle between life and death during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO / THOMAS COEX

Dancers perform in a scene dramatising the struggle between life and death during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012. AFP PHOTO / THOMAS COEX

Paraguay's athlete Leryn Franco parades with her country's delegation during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / LEON NEAL

Paraguay's athlete Leryn Franco parades with her country's delegation during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London. AFP PHOTO / LEON NEAL

Russian Prime Minister Dimitry Medvedev (R) waves during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London. AFP PHOTO / POOL / RIA-NOVOSTI / DMITRY ASTAKHOV

General view a few minutes before the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.Photo by Guibbaud/Gouhier/JMP/ABACAPRESS.COM # 328850_008

General view a few minutes before the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.Photo by Guibbaud/Gouhier/JMP/ABACAPRESS.COM # 328850_009

General view a few minutes before the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium in London, UK on July 27, 2012. Photo by Guibbaud-Gouhier-JMP/ABACAPRESS.COM # 328850_006

General view a few minutes before the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium in London, UK on July 27, 2012. Photo by Guibbaud-Gouhier-JMP/ABACAPRESS.COM # 328850_007

Bildnummer: 11053605 Datum: 27.07.2012 Copyright: imago/Xinhua (120727) -- LONDON, July 27, 2012 (Xinhua) -- Photo taken on July 27, 2012 shows the art performance depicting Britain s National Health Service during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London, Britain. The 30th summer Olympic Games opened here Friday. (Xinhua/Yang Lei) (zgp) (OLY2012)BRITAIN-LONDON-OPENING CEREMONY PUBLICATIONxNOTxINxCHN ; Olympia London Olympische Spiele Sommerspiele Sommer Impressionen premiumd xmk x2x 2012 quer Image number 11053605 date 27 07 2012 Copyright imago Xinhua London July 27 2012 Xinhua Photo ON July 27 2012 Shows The Art Performance Britain s National Health Service during The Opening Ceremony of The London 2012 Olympic Games AT The Olympic Stage in London Britain The 30th Summer Olympic Games opened Here Friday Xinhua Yang Lei zgp Britain London Opening Ceremony PUBLICATIONxNOTxINxCHN Olympia London Olympic Games Summer Games Summer Impressions premiumd xmk x2x 2012 horizontal

Britain's Prince William and Princess Ann before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328864_011

Britain's Prince William and Catherine, the Duke and Duchess of Cambridge before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328870_027

Britain's Prince William and Catherine, the Duke and Duchess of Cambridge before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328870_019

Britain's Prince William and Catherine, the Duke and Duchess of Cambridge before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328870_016

Britain's Prince William and Catherine, the Duke and Duchess of Cambridge before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328870_004

Britain's Prince William and Catherine, the Duke and Duchess of Cambridge before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328870_001

Britain's Prince William and Catherine, the Duke and Duchess of Cambridge before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328870_018

Britain's Prince William and Catherine, the Duke and Duchess of Cambridge before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328870_003

Mayor of London Boris Johnson (R) and his wife during the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328876_021

Prince Albert II of Monaco and Princess Charlene of Monaco during the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328876_046

(L-R) London Mayor Boris Johnson, UK Prime Minister James Cameron and his wife and Princess Ann during the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328876_031

Princess Ann and Lord Sebastian Coe during the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328876_036

Crown Prince Willem Alexander and Princess Maxima of the Netherlands before the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328864_018

Prince Albert II of Monaco and Princess Charlene of Monaco during the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London Olympic Games in London, UK on July 27, 2012. Photo by ABACAPRESS.COM # 328876_047

London 2012 Summer Olympics opening ceremonies in London on Friday, 27th July, 2012. LEHTIKUVA / Heikki Saukkomaa *** FINLAND OUT. NO THIRD PARTY SALES. ***

London 2012 Summer Olympics opening ceremonies in London on Friday, 27th July, 2012. LEHTIKUVA / Heikki Saukkomaa *** FINLAND OUT. NO THIRD PARTY SALES. ***

London 2012 Summer Olympics opening ceremonies in London on Friday, 27th July, 2012. LEHTIKUVA / Heikki Saukkomaa *** FINLAND OUT. NO THIRD PARTY SALES. ***

London 2012 Summer Olympics opening ceremonies in London on Friday, 27th July, 2012. LEHTIKUVA / Heikki Saukkomaa *** FINLAND OUT. NO THIRD PARTY SALES. ***

The olympic flame arrives on a boat with David Beckam before the opening ceremony of The 2012 London Olympic Games, in London, UK, on July 28, 2012.Photo by Christophe Guibbaud/ABACAPRESS.COM # 328906_002

Fireworks light up the sky at The Olympic Stadium in London during the opening ceremony of The 2012 London Olympic Games, in London, UK, on July 28, 2012.Photo by Christophe Guibbaud/ABACAPRESS.COM # 328906_008

Fireworks light up the sky at The Olympic Stadium in London during the opening ceremony of The 2012 London Olympic Games, in London, UK, on July 28, 2012.Photo by Christophe Guibbaud/ABACAPRESS.COM # 328906_010

The Olympic Stadium during the opening ceremony of The 2012 London Olympic Games, in London, UK, on July 28, 2012. Photo by Christophe Guibbaud/ABACAPRESS.COM # 328906_028

The Olympic Stadium during the opening ceremony of The 2012 London Olympic Games, in London, UK, on July 28, 2012. Photo by Christophe Guibbaud/ABACAPRESS.COM # 328906_024

Steve Redgrave, right, holds the Olympic torch after entering the stadium during the Opening Ceremony at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Matt Dunham, Pool)

Steve Redgrave enters the Olympic Stadium with the Olympic flame during the Opening Ceremony at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Matt Dunham, Pool)

Brazil's Rodrigo Pessoa carries the flag during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Matt Dunham)

Jamaica's Usain Bolt carries the flag during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Matt Dunham)

Elena Gemo of Italy poses for photographers during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Matt Dunham)